Engine



Dec. 29, 1936.

A. J. MEYER ENGINE Filed Sept. 28, 1932 2 Sheets-Sheet l R O m E V m flrzdre J/Vyer BY r ATTORNEY.

Dec. 29, 1936.

A. J. MEYER ENGINE Filed Sept. 28, 19:52

2 Sheets-Sheet .2

INVENTOR. fizzdre JjL ey r ATTORNEY.

Patented Dec. 29, 1936 UNITED STATES PATENT OFFIQE ENGINE corporation of Virginia Application September 28, 1932, Serial No. 635,136

3 Claims.

This invention relates to internal combustion engines and refers more particularly to improvements in engines of the sleeve valve types as distinguished from engines of the poppet valve 5 types, although certain features of my invention in their broader aspects are not necessarily limited to sleeve valve types of engines.

The features of my invention are particularly related to cylinder head and associated structures for .closing the outer ends of the working cylinders of the engine. Other features of my invention are related particularly to improvements in distributing the cooling fluid, such as water between the jackets surrounding the engine cylinders and the jackets of the cylinder head structure.

It is an object of my invention to provide a simplified and improved cylinder head structure capable of manufacture at relatively low cost and adapted for machining and operation in the engine in an improved manner.

It is a further object of my invention to provide improved means for more efliciently circulating the engine cooling fluid throughout the cylinder head structure whereby to reduce or eliminate the difliculties which have arisen in the past, owing to ineflicient cooling of such parts and resulting detonation, carbon formations, power losses, etc.

In carrying out the objects of my invention I have provided a pair of cooperating elements forming the cylinder head structure, one of which is adapted to have a pressed fit with the other; One of these elements is preferably in the form of a Water jacketed header structure secured to the cylinder block and provided with a substantially cylindrical opening adapted to receive the other of these elements which is preferably in the form of a cylinder head plug member.

A further feature of my invention resides in the provision of a cylinder head plug subjected to a seating action by reason of the pressures developed by the explosion of the gases within the engine cylinder. I preferably provide for the circulation of the cooling fluid between two longitudinally extending water headers, the fluid passing through openings in the pressed fit between the cylinder head plug and header structure, whereby substantially all of the cooling water passing to the outlet is caused to travel across'the respective cylinder head plugs associated with the various cylinders of the engine.

Further objects and advantages of my inven- ,tion will be apparent as this specification progresses, reference being had to the accompanying drawings illustrating one embodiment of my invention, and in which:

Fig. l is a sectional elevation view transversely through a typical cylinder of the engine, such as along the line ll of Fig. 3,

Fig. 2 is a sectional view longitudinally of a portion of the engine along the line 2-2 of Fig. 3, and

Fig. 3 is a top plan view of the front end portion of my invention with certain parts thereof broken away to illustrate details of the construction.

Referring to the drawings, reference character A represents the body portion of the engine or cylinder block formed with a plurality of longitudinally spaced bores or cylinders in having the inlet ports H and associated passages l2 for the supply of the usual fuel mixture. The various cylinders It! also have the exhaust ports l2 and associated passages l3, it being understood that such structures may be of any preferred form as they are Well known in the art.

Located within each cylinder I0 is the usual.

working piston l4 and associated therewith preferably between the piston and cylinder ID is one or more sleeve valves l5, the latter having intake and exhaust ports l6 and I1 respectively for valving functions with the cylinder intake and exhaust ports I! and 52 The particular engine illustrated is the Burt-McCollum type wherein a single sleeve valve is given a .combined reciprocating and oscillating movement to perform the Well known valving functions, although it will be understood that my invention is not limited to any particular type of sleeve valve engine as hereinbefore stated.

Seated on the upper face l8 of cylinder block A and secured thereto by the bolt assemblies I9, is a cylinder head structure B consisting of a water jacketed header structure C and a cylinder head plug member D for each cylinder. The description for the most part will be limited to the parts associated with one of the engine cylin- 45 ders to avoid duplication. Between the header structure C and face I8 I have provided a gasket 20 adapted to prevent leakage of the cooling fluid. The header structure C preferably. extends longitudinally of the engine and trans 5 versely across the cylinder block Ill and is provided with a plurality of longitudinally spaced substantially cylindrical bores or openings 2| preferably co-axial with the respective cylinders Ill. The cylinder head plug member D is formed with an outwardly extending substantially cylindrical body 22 adapted for a pressed fit within the associated opening 2| when the cylinder head block is moved outwardly with respect to the cylinder for assembly within opening 21. The pressed fit referred to is preferably of the same character as ordinary pressed fits dealt with in machine shop practice and will securely hold the parts of the cylinder head structure in assembled relation in convenient manner, preferably without requiring additional fasteners and such fit will also prevent the escape of combustion chamber gases and cooling fluid.

In order to limit the outward movement of the plug D in assembly and when subjected to the explosion pressures ocurring within the combustion chamber 23, I have provided an annular flange 24 adjacent the inner end of the cylindrical body portion 22, this flange 24 being adapted to underlie the lower face of the header structure C either with or without the interpositioning of a gasket. In Fig. 1 I have illustrated a gasket 25 which may be of copper or other suitable material designed to further insure against leakage of gases and cooling water, though in most instances, I have found that such gasket is not necessary. The annular flange 24 is carried by the portion 28 of the plug D, this portion 26 in the illustrated embodiment of my invention depending within the outer end of cylinder i0 and spaced therefrom to provide an annular sleeve pocket 21 adapted to receive the upper end of sleeve valve l5. A spark plug 28 is carried by the plug D and has its firing terminals 29 located for igniting the explosive charge in combustion chamber 23.

The cylinder block A has a jacket structure 30 for the cooling water, the jacket preferably surrounding each of the cylinders ii and being open at the top of the cylinder block by reason of a series of spaced openings 3| extending through the face l8. These openings 3! register with openings 32 in the header structure C, the latter being formed with a jacket preferably in the form of a pair of longitudinally extending conduits 33 and 34. These conduits are formed by a plurality of longitudinally aligned bafiles 35 best shown in Figs. 2 and 3, the baflies extending between adjacent openings 2! and cooperating with a baffle 36 (see Fig. 3) at the ends of the cylinder block. The plug members D are jacketed at 37 so as to provide for the circulation and passage of cooling water laterally therethrough and in intimate contact with the wall 26 of combustion chamber 23 and around the base of spark plug 28, the cooling water passing inwardly to jacket 31 by reason of cooperating inlet openings 38 and 39 respectively formed in the header C and plug D, transversely of the aforesaid pressed fit. The cooling water is passed outwardly from the jacket 31 to outlet conduit 34 by reason of similar cooperating outlet passages 4i) and 4t likewise arranged transversely of the pressed fit.

In order to prevent the formation of steam along the outlet side of the cylinder block, I have provided relatively small openings 42 adapted to register with openings 43 in the header C although it will be understood that these openings are relatively small in size or number compared with the openings 3! and 32 whereby substantially all of the cooling water circulated from the cylinder block jacket 39 to the cylinder head structure is caused to pass through openings 3| and 32 and into the distributor conduit 33. The cooling water from conduit 33 must pass through the respective openings 38, 39 and 40, 4! in order to reach the outlet conduit 34, by reason of cooperating baflies 35, 36 and the cylindrical portions 44 of the header C. The outlet conduit 34 communicates preferably at the forward end of the cylinder block with the water outlet 45 shown in Fig. 3.

While I have illustrated and described one embodiment of my invention in detail, I do not limit the scope of my invention to the particular combination of parts as illustrated and described, since various modifications and deviations therefrom will be apparent from my disclosure.

What I claim as my invention is:

1. In an internal combustion engine having a jacketed cylinder block formed with a plurality of cylinders spaced longitudinally of said block, a jacketed cylinder head structure closing the outer ends of said cylinders, said cylinder block and cylinder head structure having cooperating jacket openings for the passage of cooling fluid therebetween at a plurality of points longitudinally of the cylinder block along one side thereof whereby the majority of cooling fluid circulated from the cylinder block jacket to said jacketed cylinder head structure passes along said cylinder block side, said cylinder head structure having longitudinally extending baffles forming an inlet conduit for the cooling fluid along said cylinder block side and an outlet conduit for the cooling fluid along the opposite side of said cylinder block, and means for circulating cooling fluid between said conduits above each of said cylinders.

2. In an internal combustion engine having a jacketed cylinder block formed with a plurality of cylinders spaced longitudinally of said block,,

a jacketed header structure secured to said cylinder block and having cylinder head receiving openings spaced longitudinally thereof above said cylinders respectively, a baflie extending longitudinally of the engine between adjacent,

cylinder head receiving openings dividing said header structure into longitudinally extending cooling fluid conduits, one of said conduits and said jacketed cylinder block having registering openings for the passage of cooling fluid therebetween, and a jacketed cylinder head member within each of said cylinder head receiving openings, said jacketed cylinder head members having openings respectively communicating with said conduits, said bafiles and said openings in,

said cylinder head members cooperating to concentrate the passage of cooling fluid between said conduits through said cylinder head members.

3. In an engine having a cylinder block formed with a plurality of cylinders, a jacketed header having a substantially fiat underface seated on the upper face of said cylinder block, said header having spaced plug-receiving openings substantially aligned with the respective cylinders, said header having a lateral opening between the jacket thereof and each of said plug-receiving openings, and a jacketed cylinder head plug within each of said plug-receiving openings and extending partially within the cylinder, each of said plugs having a lateral opening communicating with the jacket thereof and with the associated lateral opening of said header.

ANDRE J. MEYER.

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